Changed method and variable names to align with dark theme boolean method

Author: mai-tran-03

bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/progress/ProgressInfoItem.java

@@ -152,7 +152,7 @@ interface IndexListener {
 
 	private HandlerChangeTracker tracker;
 
-	private boolean isThemed;
+	private boolean isDarkTheme;
 
 	static {
 		JFaceResources.getImageRegistry().put(STOP_IMAGE_KEY,
@@ -192,7 +192,7 @@ interface IndexListener {
 	public ProgressInfoItem(Composite parent, int style, JobTreeElement progressInfo) {
 		super(parent, style);
 		info = progressInfo;
-		isThemed = getCustomThemeFlag();
+		isDarkTheme = isDarkThemeSelected();
 		setData(info);
 		setLayoutData(new GridData(SWT.FILL, SWT.NONE, true, false));
 		createChildren();
@@ -834,7 +834,7 @@ public void setColor(int row) {
 			return;
 		}
 
-		if (!isThemed) {
+		if (!isDarkTheme) {
 			if (row % 2 == 0) {
 				setAllBackgrounds(JFaceResources.getColorRegistry().get(DARK_COLOR_KEY));
 			} else {
@@ -1006,12 +1006,12 @@ public boolean changed(IEclipseContext context) {
 			return true;
 		}
 	}
+	
 	/*
-	 * Check if workspace is using a theme. If it is, confirm it is not the default
-	 * theme.
+	 * Check if the current theme of the workspace is a dark theme. If it is, returns true.
 	 */
 
-	private boolean getCustomThemeFlag() {
+	private boolean isDarkThemeSelected() {
 		IThemeEngine engine = PlatformUI.getWorkbench().getService(IThemeEngine.class);
 		if (engine != null) {
 			ITheme activeTheme = engine.getActiveTheme();